Appendix
68
Installation and maintenance instructions flexoTHERM exclusive 0020213394_01
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Brine circuit pump electrical power con-
sumption for B0/W35
Δ
T 3 K with an ex-
ternal pressure loss of 250 mbar in the
brine circuit
44 W
62 W
64 W
83 W
121 W
Brine fluid type
Ethylene glycol
30% vol.
Ethylene glycol
30% vol.
Ethylene glycol
30% vol.
Ethylene glycol
30% vol.
Ethylene glycol
30% vol.
Building circuit/heating circuit
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Nominal flow at
Δ
T 5 K
920 l/h
1,530 l/h
1,920 l/h
2,450 l/h
3,320 l/h
Max. remaining feed head with
Δ
T 5 K
0.065 MPa
(0.650 bar)
0.045 MPa
(0.450 bar)
0.035 MPa
(0.350 bar)
0.073 MPa
(0.730 bar)
0.045 MPa
(0.450 bar)
Nominal flow with
Δ
T 8 K
570 l/h
980 l/h
1,240 l/h
1,600 l/h
2,180 l/h
Max. remaining feed head with
Δ
T 8 K
0.068 MPa
(0.680 bar)
0.065 MPa
(0.650 bar)
0.057 MPa
(0.570 bar)
0.086 MPa
(0.860 bar)
0.080 MPa
(0.800 bar)
Min. volume flow during continuous oper-
ation at the application limits
570 l/h
980 l/h
1,240 l/h
1,600 l/h
2,180 l/h
Max. volume flow during continuous op-
eration at the application limits
920 l/h
1,530 l/h
1,920 l/h
2,450 l/h
3,320 l/h
Heating pump electrical power consump-
tion for B0/W35
Δ
T 3 K with an external
pressure loss of 250 mbar in the heating
circuit
25 W
30 W
45 W
60 W
74 W
Performance data
The following performance data is applicable to new products with clean heat exchangers.
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Heating output B0/W35
Δ
T 5 K
5.30 kW
8.90 kW
11.20 kW
14.50 kW
19.70 kW
Power consumption B0/W35
Δ
T 5 K
1.30 kW
2.00 kW
2.50 kW
3.40 kW
4.70 kW
Output figure B0/W35
Δ
T 5 K/coefficient
of performance EN 14511
4.70
5.10
5.00
4.90
4.70
Heating output B0/W45
Δ
T 5 K
5.30 kW
8.80 kW
11.20 kW
14.10 kW
19.60 kW
Power consumption B0/W45
Δ
T 5 K
1.70 kW
2.50 kW
3.20 kW
4.20 kW
5.80 kW
Output figure B0/W45
Δ
T 5 K/coefficient
of performance EN 14511
3.50
3.80
3.80
3.80
3.70
Heating output B0/W55
Δ
T 8 K
5.40 kW
9.00 kW
11.40 kW
14.70 kW
20.00 kW
Power consumption B0/W55
Δ
T 8 K
2.00 kW
2.90 kW
3.80 kW
5.00 kW
6.60 kW
Output figure B0/W55
Δ
T 8 K/coefficient
of performance EN 14511
3.00
3.30
3.20
3.20
3.20
Sound power level B0/W35
EN 12102/EN 14511 L
WI
in heating mode
39.8 dB(A)
42.4 dB(A)
45.2 dB(A)
49.9 dB(A)
48.4 dB(A)
Sound power level B0/W45
EN 12102/EN 14511 L
WI
in heating mode
40.7 dB(A)
45.1 dB(A)
46.7 dB(A)
49.3 dB(A)
46.1 dB(A)
Sound power level B0/W55
EN 12102/EN 14511 L
WI
in heating mode
40.6 dB(A)
49.9 dB(A)
47.2 dB(A)
48.0 dB(A)
48.4 dB(A)
Application limits for the heat pump: Heating (heat source = brine)
–
At the same volume flow rates in the heating circuit (
Δ
T 5 K or
Δ
T 8 K) and the brine circuit (
Δ
T 3 K) as for the nominal
heat output test under standard nominal conditions. Operation of the pump outside the application limits results in the
heat pump being switched off by the internal control and safety devices.
–
Application limits for the heat pump: Heating (Brine heat source):
–
B15/W65
–
B25/W59
–
B25/W25
–
B
−
10/W25
–
B
−
10/W60
–
B
−
5/W65